Reciprocating table for holding moldings to be polished



2 Sheets-Sheet 1 (No Model.)

L. MALOHOW.

REGIPROGATING TABLE FOR HOLDING MOLDf I NGS TO BE POLISHED.

Patented Mar. 19, 1889..

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(No Model.) 2 Sheets-Sheet 2. L. MALGHOW.

REGIPROGATING TABLE FOR HOLDING MOLDINGS TO BE POLISHED.

No. 399,762. Patented Mar. 19, 1889.

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LOUIS MALCHOIV, OF CHICAGO, ILLINOIS RECIPROCATING TABLE FOR HOLDING MOLDINGS TO BE POLISHED.

SPECIFICATION forming part of Letters Patent No. 399,762, dated March 19, 1889.

Application filed September 1'7, 1888. Serial No. 285,593. (No model.)

To all whom it may concern:

Be itknown that 1, Louis MALoHow, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented new and useful Improvements in Reciprocating Tables for Holding Moldings to be Polished, of which the following is a specification, reference being bad to the accompanying drawings, (two sheets,) in which Figure 1 is a broken plan or top view of my invention; Fig. 2, a detail portion thereof removed from the other parts. Fig. 3 is a vertical longitudinal section of a portion of Fig. 1 on line :12. Fig. 4 is a transverse section of Fig. 1 on line y, the gearing and frame being shown as an end elevation. Fig. 5 is a perspective representation of the reversing-link removed from the other parts. Fig. (5, Sheet 2, is a side elevation of the device.

This invention relates to means for giving to moldings and similar articles a reciprocating movement, whereby a polisher or finisher may stand in one place and do his work on the moldings as they pass back and forth on a table before him.

The nature of the invention, in brief, consists of a suitable bed or frame portion, which is provided with the ordinary track for a table to run on. An endless chain is employed on two sprocket-wheels, and one, wheel is driven by suitable gearing. A slide placed at one end of the table which supports the' moldings is made to have a reciprocating movement by a reversing-link, which is pivoted to the slide and jointed to the endless chain, whereby by running the chain continuously in one direction the table is made to have a reciprocating or forward and back movement, as the whole is hereinafter fully described and shown.

R P Q. X represent one form of frame suitable for the support of the mechanism shown. The sprocket-wheels, of ordinary construction, are shown at G and F, the one being supported on a shaft, U, and the other on a shaft, N. The latter shaft is driven by gears M, shaft 0, and pulley P in the ordinary manner of driving endless chain-and-sprocket gear, nothing new being claimed in this regard. Longitudinally at the sides of the bed X are formed the tracks A, on which the table E runs back and forth, suitable iron shoes, IV, being interposed between the track and bed to hold the table in position on the track for that purpose.

(.3 is a metal guide, which is secured transversely on one end of the table, and it is slotted out at D transversely to form ways for a grooved slide, D, to run on, as shown at Figs. 1 and 3. A reversing-link, which con sists, as the better construction, of an upper and lower plate, H K, united at one end by a hook, I, which forms a joint on the chain F, and unit-ed at the other end by a strong metal portion, L, which forms a suitable support for a pivot, J.

The parts H. K IL inclose a space which the sprocket-wheels G F, respectively, enter while the revcrsii'ig-link is being shipped from one side of the chain to the other, or is being carried around the sprocket-wheels. The pivot .I projects vertically into the slide D, and, the end L of the link being free to swing, the pivot ships the slide the distance the chain is apart, and as a result the table E will have itsdirection changed at each time the reversing-link passes around a sprocketwheel. At Fig. 2, II represents the reversinglink in the position. as so passing around one wheel, and dotted lines II show the position of the link coming to the wheel, While dotted lines II show the position of the link as it is leaving the wheel.

It will be understood that the link I-I trav els back and forth with the table E, and has the additional transverse movement at the outside of each sprocket-wheel to ship the slide D and reverse the movement of the table.

Z represents the positions moldings may have on the table.

It is proper to-stat-e that a machine constructed as herein described and shown is in practical operation, and that by its use considerable more labor can be performed in a given time and with much less fatigue to the workman, and as the moldings have a uniform movement the quality or the work is more uniformly done than by the other methods. v

I claim as new and desire to secure by Letters Patent- In. reciprocating tables, the tracks A A, supported by suitable frame-Work, and the table F, with the endless chain thereon, and suit- E thereon, in combination With the slotted able gearing, N M O P, as and for the purguide portion 0 D, placed transversely on one pose specified.

end of the table, and the slide D in the guide, LOUIS MALCHOVV. the reversing-link H K L I, with the pivot J, Witnesses:

projecting into the slide, and the portion I, G. L. GHAPIN,

jointed to the chain F, the sprocket-Wheels G AUGUST F. SCHULTZ. 

